1. This product features ultra-high stability and high-sensitivity design with a 360-degree all-around detection surface. 2. LCD display shows object detection distance, sound, vibration, and alarm status. 3. Designed for easy detection of prohibited items, the product has a user-friendly design and includes special hanging accessories. 4. The device requires no adjustment, is simple to operate, and includes a low-voltage indication function. Product parameters: Sensitivity range for detecting one-yuan coins: 3-5cm; includes under-voltage indication. Detection methods: vibration, sound, display. Power supply: 9V 6F22 battery (battery not included). Operating environment: temperature -20C to 60C. Material: plastic. Color: Black. Package Contents: 1 x Metal Detector Note: Other items shown are not included. Note: Lighting reflections and differences in display screens may cause slight variations between the color of the item in the image and the actual product. Measurement error allowance: +/- 1-3cm.